Monthly Bump #1. The only other useful information on this subject is under the BattleForce rules for QuadVees (IO, p.206-207). Under Damage and Critical Hits, it states "In both modes, QuadVees suffer damage and critical hits as a BattleMech. Unlike vehicles, QuadVees do not check for Motive Systems Damage under any circumstances". The QuadVee wheels are not documented anywhere, unlike Tracks (IO, p.35). Wheels are usually more fragile than Tracks, but perhaps QuadVee Wheels are all HarJel filled?